package org.smart4j.framework.util;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

/**
 * 反射工具类
 * 1.0
 */
public class ReflectionUtil {

    private static final Logger LOGGER= LoggerFactory.getLogger(ReflectionUtil.class);

//    创建实例
    public static Object newInstance(Class<?> cls){
        Object instance;
        try {
            instance=cls.newInstance();
        } catch (Exception e) {
            LOGGER.error("new instance failure",e);
            throw new RuntimeException(e);
        }
        return instance;
    }
//    调用方法
    public static Object invokeMethod(Object object, Method method,Object...args){
        Object result;
        try {
            method.setAccessible(true);
            result=method.invoke(object,args);
        } catch (Exception e) {
            LOGGER.error("invoke method failure",e);
            throw new RuntimeException(e);
        }
        return  result;
    }
//    设置成员变量的值
    public static void setField(Object obj, Field field,Object value){
        try {
            field.setAccessible(true);
            field.set(obj,value);
        } catch (Exception e) {
            LOGGER.error("set field failure",e);
            throw new RuntimeException(e);
        }
    }
}
